Mechanical movement.



PATENTED OCT--18, 1904.

T. A. WARNER. MECHANICAL MOVEMENT.

APPLICATION FILED JULY 31, 1903.

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UNITED STATES Patented October 18, 1904.

PATENT OFFICE.

MECHANICAL MOVEMENT.

SPECIFICATION forming part of Letters Patent-No. 772,388, dated October18, 1904.

Application filed July 31, 1903.

To all whom it may concern/.-

Be it known that I, THOMAS A. WARNER, of Cambridge, in the county ofMiddle/sex and State of Massachusetts, have invented an ImprovedMechanical- Movement, of which the following, taken in connection withthe accompanying drawings, is a specification.

My invention relates to a mechanical movement; and it consists incertain novel features of construction, arrangement, and combination ofparts, which will be readily understood by reference to the descriptionof the accompanying drawings and to the claims hereto appended, and inwhich the invention is clearly pointed out.

Figure 1, of the drawings is a sectional elevation of a machineembodying my invention, the cutting-plane being on line A A on Fig. 2looking toward the top of said figure. Fig. 2 is a partial plan of thesame, a portion of the base-frame between its pivotal end and thesupporting-wheel, as well as the opposite end, being broken away. Fig. 3is a plan of the base-frame with the horse and the more prominent partsof the operating mechanism mounted thereon, but reduced to one-half thescale of Figs. 1 and 2. Fig. 4 is a side elevation of Fig. 3.. Fig. 5 isa partial sectional elevation, the cutting-plane being on line B B onFig. 2, with the ratchet-wheel removed and its outline only beingindicated by a dotted circle. Fig. 6 is a vertical section on lineC C onFig. 5. Figs. 7 and 8 are respectively a rear elevation and an edge viewof the pawldisengaging lever, and Figs. 9 and 10 are respectively a rearelevation and an edge elevation of a slotted disk carried by saidpawl-disengaging lever.

In the drawings, 1 represents the upper surface of the bed or floor uponwhich the machine is supported and in which is secured in Serial No.167,665. (No model.)

one end of the radius beam or frame 8,which has secured thereon in fixedpositions intermediate of its ends two upwardly-projecting stands 9 9,which have mounted in bearings in their upper ends the shaft 10, uponwhich is firmly secured the wheel 11 and the ratchetwheel 12 and hasloosely mounted thereon the inner ends of the radius-arms 13 and 14, tothe outer or movable ends of which are pivoted the toggle-links 15 and17 respectively, the opposite ends of which are pivoted to the arms 16and 18, respectively, of an elbow lever mounted upon a fixed fulcrum-pin19, set in the standard 20, as shown; The pivotpins by which the arms 13and 14 are connected to the toggle-links 15 and 17 extend beyond saidtoggle-links and through the supplementary radius-arms 21 and 22, whichare also mounted loosely on said shaft 10 and serve to support the endsof said pins opposite to the arms 13 and 14 and have respectivelymounted thereon the pawls 23 and 24, the points of which are normallypressed into engagement with the teeth of the ratchet-wheel 12 by thesprings 25 and 26, which are coiled about said pins, and each has oneend connected to its pawl and the other end engaging its supplementaryradiusarm 21 or 22, as shown in Fig. 1. The shaft 10 also has looselymounted thereon between the arms 13 and 14 and the ratchet-wheel 12 theslotted disk 27, which has formed upon one side thereof two shoulders aand b at right angles to each other. which shoulders are engaged bycorresponding edges 0 and (Z of the opening 28 through the upper end ofthe lever 29, said lever being 'mounted upon and slightly movable abouta stud 30, set in one of the stands 9, as shown in Figs. 1, 5, and 6.

A three-armed lever 31 is pivoted at eto the same stand 9 in which isset the stud 30 and has formed upon or set in the upper short armthereof a stud 32, which projects through the slightly-slotted hole 33in the lever 29 and serves to vibrate said lever as said three-armedlever is moved about its axis of motion.

, The upper end of the standard 20 has pivoted thereto one end of thelever 34, which has set therein near its movable end a stud 35, whichpasses through the slot 36, formed in the upper end of the link 37 thelower end of which is pivoted to the movable end of the long arm of thethree-armed lever 31. The lever 34 has its two vertical sides paralleland its top and bottom edges beveled to give it a dovetailed shape incross-section and has fitted thereto and adjustable endwise thereon theblock 38, which may be secured in any desired adjusted position by theset-screw 39. The block 38 has pivoted thereto the upper end of the link40, the lower end of which has a bearing on the same pin as thetoggle-link 15, whereby an upward movement of the movable end of thelever 34 will cause an upward movement of both pawls 23 and 24, saidpawl 23 engaging the teeth of the ratchet-wheel 12 and moving it aboutits axis in the direction indicated by the arrow on Fig. 1, while thepawl 24 is disengaged from said ratchet-wheel and moves upwardpreparatory to engaging said ratchet-wheel and moving it in the samedirection when said lever 34 is moved downward.

The pawl 23 has set in its side a projecting stud or pin 41, with whichthe outer camshaped end of the short two-armed lever 42, pivoted to thearm 13 intermediate of its ends, engages to disengage said pawl fromcontact with said ratchet when said pawl has reached the extreme of itsupward movement, said lever 42 being moved about its pivotal connectionwith the arm 13 by the contact with its inner end of the disk 27 as. theupper end of the lever 29 and said disk are moved toward the left ofFigs. 1 and 5. The pawl 24 has formed upon or set in its outer face anarm or stud 43, with which the pin 44, set in the outer end of the longarm of the lever 45, pivoted to the arm 14, engages to disengage saidpawl from contact with said ratchet when said pawl has reached theextreme of its downward movement, said lever 45 being moved about itspivotal connection to said arm 14 by the contact with its short arm ofthe disk 27 as the upper end of the lever 29 and said disk are movedtoward the right of Figs. 1 and 5. The engaging ends of the pawls 23 and24 are moved outward to disengage them from the teeth of theratchetwheel against the tensions of the springs 25 and 26, which tendto maintain said pawls in engagement with said ratchet till saidtensions are overcome. The movement of the three-armed lever 31 aboutits axis of motion is limited by suitable stops, as indicated by thepins 46, set in one of the stands 9, as shown in Fig. 1.

The movable end of the lever 34 has pivoted thereto the upper end of thelink 47, the lower end of which is connected to one end of the lever 48,fulcrumed at 49 on the stand 50, as shown in Figs. 3 and 4.

The movable end of the radius beam or frame 8 has an upwardly-projectingstandard 51 secured thereto, upon the upper end of which is supported inany suitable manner the dummy horse 50, which is provided on each sideof its nose with a small sheave or pulley 53 in lieu of bits. The sameend of said radius-beam 8 has secured thereto a stand 55, as shown inFigs. 1, 3, and 4.

The end of the long arm of the lever 48 has connected thereto one end ofa suitable cord 56, which is passed downward therefrom to and partiallyaround the sheavepulley 55, then upward over one of the bit-sheavesbackward to the saddle, then doubled in the form of a loop, then extendsforward on the opposite side of the horses neck over the otherbit-sheave, and then downward and is made fast to said lever 48.

The operation of my invention is as follows: The several parts of themachine being in the same relative positions as shown in the drawingsand it being desired to rotate the shaft 10 and wheel 11, power isapplied to the free end of the lever 34 to move it, the link 40, andboth pawls 23 and 24 upward, said pawl 23 being in engagement with theteeth of the ratchet-wheel and causing it, its shaft 10, and the wheel11 to be partially rotated about the axis of said shaft 10 in thedirection indicated by the arrow on Fig. 1, the extent of said partialrotation depending upon the position of the block 38 upon the lever 34.During this upward movement of the pawls the pawl 24 is disengaged fromengagement with the ratchet-wheel 12 by the action of the disk 27 uponthe short arm of the lever 45 and the engagement of the pin 44 with thearm or stud 43, set in or formed upon said pawl 24, which position ismaintained until the stud 35, set in the movable end of said lever 34,has reached the upper end of the slot 36 in the upper end of the link37, when aslightlyfarther upward movement of said lever 34 will cause anupward movement of the link 37 and the end of the long arm of the lever31, whereby said lever 31 is moved about its axis, so as to move theupper end of the lever 29 toward the left of Figs. 1 and 5, therebycausing the disk 27 to act upon the lever 42 to move it about its axis,and thereby disengage the pawl 23 from contact with the ratchet-wheel bythe cam-shaped outer end of said lever acting upon the stud or pin 41,and at the same time the removing of the disk 27 from contact with theshort arm of the lever 45 permits the tension of the spring 26 to movesaid pawl 24 into engagement with the teeth of the ratchet 12. Theoperator then depresses the free end of the lever 34, whereby the link40 and both pawls 23 and 24 are moved downward, said pawl 24 being inengagement with the teeth of said ratchet-wheel 12, thereby causing afurther partial rotation of said ratchet and the wheel 11 in the samedirection as before, pawl 23 during said downward movement being heldout of engagement with said ratchet by the pressure of the disk 27 uponthe inner end of the lever 42 until the stud 35 comes in contact withthe lower end of the slot-36 in the link 37 when a slightly-additionaldownward movement of the end of the long arm of lever 34 will cause thepawl 24 to be disengaged from contact with said ratchet and the pawl 23to be thrown into engagement with said ratchet by the movements of thelevers 31 and 29 about their axes. These movements may be continuedindefinitely by alternately pulling upon the right and left portions ofthe bridle-rein loop, and thus acontinuous rotation be imparted to thesupporting-wheel 11 and a continuous movement of the radiusbeam 8 aboutits pivotal stud 3, carrying at its outer or movable end the horse andits rider in a circle having a diameter equal to twice the length ofsaid radius-beam, which may be made of any desired length, according tothe place where it is to be used. The speed with which a person may ridemay be regulated by adjusting the block 38 along the lever 34 from apoint in close proximity to the link 37 to a point directly opposite thepivotal connection of said lever with the standard 20, at which point ofadjustment no motion of the pawls will take place, and consequently theradius-beam 8 and the horse and rider carried thereby will remainstationary regardless of any pulls upon the bridle-loop of the cord 56.

Aside from the use of my invention as a riding toy or merry-go-round theratchet-andpawl mechanism and the means for operating and controllingthe action of said pawls are applicable to use in other'lines ofmachinery where a continuous rotary motion is desired to be producedfrom a vibratory or a reciprocatory movement.

What I claim as new, and desire to secure by Letters Patent of theUnited'States, is

1. The combination with a shaft to be revolved,of a ratchet-wheel firmlysecured thereand from each other around said ratchetwheel; the shortcam-lever pivoted to the arm 13; a pin or lug projecting from the pawl23 in position to be engaged by the outer camshaped end of said shortlever; the lever 45 pivoted to the arm 14; a pin or lug projecting fromthe end of the long arm of said lever; a pin or lug projecting from thepawl 24 in position to be engaged by the pin orlug of the lever 45;means for alternately acting upon said levers 42 and 45 to disengagesaid pawls from engagement with said ratchet; and springs connected tosaid pawls and arranged to normally press said pawls into engagementwith said ratchet-wheel.

2. The combination of the shaft 10; the wheel 11 and the ratchet-wheelfirmly secured thereon; the arms 13 and 14 mounted loosely on saidshaft; the pawls 23 and 24 pivoted to the movable endsof said arms 13and 14 respectively; the supplementary radius-arms 21 and 22 mountedloosely on said shaft and connected at their movable ends to thepawlcarrying pins; the springs 25 and 26 connecting said pawls andsupplementary radius-arms 21 and 22; an elbow-lever mounted on a fixedfulcrum; links connecting the arms of said elbow-lever to theradius-arms 13 and 14; the operating-lever 34 fulcrumed on a fixedportion of the machine; the block 38 adj ustably mounted on said lever34; the link 40 connecting said block and the movable end of theradius-arm 13; the levers 42 and pivoted respectively to the radius-arms13 and 14 intermediate of their ends; the pins 41 and 43 projecting fromthe pawls 23 and 24 respectively; the pin 44 projecting laterally fromthe lever 45; the lever 29 pivoted at its lower end to a fixed part ofthe machine and carrying at its upper end a circular disk or hub 27; thethree-armed lever 31 provided with the stud 32 which engages a slot inthe lever 29 to vibrate it; the link 37 pivoted at its lower endscribing witnesses, on this 29th day of July,

THOMAS A. WARNER.

Witnesses:

N. C. LOMBARD, GEORGE H. BROWN.

